Against Second Hand Books

Chas Newkey-Burden in the Guardion has this to say against second hand books. Whereas I do accept what he has to say surely his reasons for not buying them are really an argument for CHECKING what you're getting before you buy. Or go to the Oxfam bookshop is Marylebone which may even have several copies of a book for you to choose from. So not all together convinced by his arguments.